B147C

B147C-CHANNEL 6 AUDIO SPEAKER OUTPUT CIRCUIT OPEN






For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:
- Amplifier Bus wake-up. Amplifier reset with scan tool.
- Set Condition:
- The Amplifier detects an open condition on the speaker output circuit.






Diagnostic Test

1. CHECK FOR AN INTERMITTENT CONDITION

Turn the ignition on.

Turn the radio on.

With the scan tool, erase Amplifier DTCs.

With the scan tool, reset the amplifier.

With the scan tool, read Amplifier DTCs.

Does the scan tool display active: B147C-CHANNEL 6 AUDIO SPEAKER OUTPUT CIRCUIT OPEN?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

2. CHECK THE OPERATION OF THE RIGHT REAR SPEAKER





Disconnect the Right Rear Speaker harness connector.

Turn the radio on and turn the volume to mid level.

With a voltmeter set to read in A/C voltage, measure the voltage of the Right Rear Speaker circuits in the Right Rear Speaker harness connector.

Is the voltage present greater than 1 volt?

Yes

- Replace the Right Rear Speaker.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 3
-

3. CHECK THE (X206) RIGHT REAR SPEAKER (+) CIRCUIT FOR AN OPEN





Turn the ignition off.

Disconnect the Amplifier C2 harness connector.

Measure the resistance of the (X206) Right Rear Speaker (+) circuit between the Amplifier C2 harness connector and the Right Rear Speaker harness connector.

Is the resistance below 5.0 ohms?

Yes

- Go To 4

No

- Repair the (X206) Right Rear Speaker (+) circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

4. CHECK THE (X296) RIGHT REAR SPEAKER (-) CIRCUIT FOR AN OPEN





Turn the ignition off.

Disconnect the Amplifier C2 harness connector.

Measure the resistance of the (X296) Right Rear Speaker (-) circuit between the Amplifier C2 harness connector and the Right Rear Speaker harness connector.

Is the resistance below 5.0 ohms?

Yes

- Replace the Amplifier.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Repair the (X296) Right Rear Shelf Speaker (-) circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test